Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=amrx_AvKAREAndRSAcquisitionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=amrx_MarketedProductRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=amrx_KashivSpecialtyPharmaceuticalsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=amrx_GovernmentLicensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=amrx_GovernmentContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=amrx_NationalContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Acquisitions - Acquired Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Apr. 02, 2021	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values		$ 74,000	$ 74,000	$ 131,000
AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			130,800
Marketed product rights \| Kashiv Specialty Pharmaceuticals, LLC
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values	$ 29,500
Government licenses \| AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			$ 66,700
Weighted-Average Useful Life			7 years
Government contracts \| AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			$ 22,000
Weighted-Average Useful Life			4 years
National contracts \| AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			$ 28,600
Weighted-Average Useful Life			5 years
Customer relationships \| AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			$ 13,000
Weighted-Average Useful Life			10 years
Trade name \| AvKARE and R&S Acquisitions
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Values			$ 500
Weighted-Average Useful Life			6 years